|
|
Entanglement dynamics of two distant atoms in two detuning cavities |
Ji Xin(计新)a)b)†, Lü Tian-Quan(吕天全)a), and Zhang Shou(张寿)a)b)‡ |
a Center for the Condensed-Matter Science and Technology, Department of Physics, Harbin Institute of Technology, Harbin 150001, China; b Department of Physics, College of Science, Yanbian University, Yanji 133002, China |
|
|
Abstract We investigate the entanglement dynamics via the concurrence of two distant atoms interacting off-resonantly with two cavity fields in Fock states, respectively. We find that the evolution of entanglement has sudden death and sudden birth phenomena, that with the increase of photon numbers in the two cavities, the alternate frequency of sudden death and sudden birth turns fast, and that the amplitude of concurrence oscillates regularly with oscillation frequency becoming slow when the cavity fields have the same photon numbers. While, the maximum of concurrence declines and the amplitude of concurrence oscillates irregularly when the two cavity fields have different photon numbers. In addition, we find the length of death time is dependent on the initial entanglement.
|
Received: 06 January 2010
Revised: 11 June 2010
Accepted manuscript online:
|
PACS:
|
03.65.Ud
|
(Entanglement and quantum nonlocality)
|
|
37.10.Vz
|
(Mechanical effects of light on atoms, molecules, and ions)
|
|
42.50.Dv
|
(Quantum state engineering and measurements)
|
|
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 60667001). |
Cite this article:
Ji Xin(计新), Lü Tian-Quan(吕天全), and Zhang Shou(张寿) Entanglement dynamics of two distant atoms in two detuning cavities 2010 Chin. Phys. B 19 110304
|
[1] |
Bennet C H and DiVincenzo D P 2000 Nature 404 247
|
[2] |
Nielsen M A and Chuang I L 2000 Quantum Computation and Quantum Information (Cambridge, England: Cambridge University)
|
[3] |
Ekert A 1991 Phys. Rev. Lett. 67 661
|
[4] |
Bennett C H, Brassard G, Crrm'epeau C, Jozsa R, Peres A and Wootters W K 1993 Phys. Rev. Lett. 70 1895
|
[5] |
Steane A 1996 Phys. Rev. Lett. 77 793
|
[6] |
Yu T and Eberly J H 2004 Phys. Rev. Lett. 93 140404
|
[7] |
Yu T and Eberly J H 2006 Opt. Commun. 264 393
|
[8] |
Yrm"onac M, Yu T and Eberly J H 2006 J. Phys. B: At. Mol. Opt. Phys. bf39 S621
|
[9] |
Li Z J, Li J Q, Jin Y H and Nie Y H 2007 J. Phys. B: At. Mol. Opt. Phys. 40 3401
|
[10] |
Yrm"onac M, Yu T and Eberly J H 2007 J. Phys. B: At. Mol. Opt. Phys. bf40 S45
|
[11] |
Abdel-Atya M 2008 Eur. Phys. J. D 46 537
|
[12] |
Mazzola L, Maniscalco S, Piilo J, Suominen K A and Garraway 2009 Phys. Rev. A bf79 042302
|
[13] |
Chen L, Shao X Q and Zhang S 2009 Chin. Phys. B 18 888
|
[14] |
Deng X J, Fang M F and Kang G D 2009 Chin. Phys. B 18 4100
|
[15] |
Chen L, Shao X Q and Zhang S 2009 Chin. Phys. B 18 4676
|
[16] |
Zhang Y J, Man Z X and Xia Y J 2009 J. Phys. B: At. Mol. Opt. Phys. 42 095503
|
[17] |
Thilagam A 2009 J. Phys. A: Math. Theor. 42 335301
|
[18] |
Zhang G F and Pu J J 2010 Acta Phys. Sin. 59 1462 (in Chinese)
|
[19] |
Shan C J, Chen T, Huang Y X, Li H, Liu J B and Liu T K 2010 Acta Phys. Sin. (to be published) (in Chinese)
|
[20] |
Almeida M P, De Melo F, Hor-Meyll M, Salles A, Walborn S P, Souto Ribeiro P H and Davidovich 2007 Science 316 579
|
[21] |
Laurat J, Choi S, Deng H, Chou C W and Kimble H J 2007 Phys. Rev. Lett. 99 180504
|
[22] |
Jim'enez Far'hias O, Lombard Latune C, Walborn S P, Davidovich L and Souto Rib'eiro P H 2009 Science 324 1414
|
[23] |
Verstraete F, Audenaert K, Dehaene and De Moor B 2001 J. Phys. A: Math. Gen. 34 10327
|
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|